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White fused alumina

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White Fused Alumina  is produced by fusing alumina block in an electric arc furnace under carefully controlled conditions. The material produced is white in color, dense and has predominantly large crystals of Alpha Alumina. Ingots are crushed, ground, and precision screened in our new sizing plant to obtain very consistent sized fractions. Magnetic iron from crushing is removed by rare earth magnets to ensure very low levels of iron in the finished products.

 

 

 

    Chemical compositions

                     Physical properties

Items

Value of specification (%)

             Items

Property

Al2O3

          99.30min

             Color

White

SiO2

          0.04 max

             Bulk

density

1.75-1.95g/cm3

Na2O

          0.22max

             True density

3.95-3.97g/cm3

Fe2O3

          0.04max

 

hardness

Morse hardness

9

Micro hardness

21600-22600kg/mm3

CaO

          0.01max

content of magnetic substance

0.0020%max

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